A line pressing mechanism for a multi-needle machine

Abstract

The utility model discloses a kind of line pressing mechanisms for multi-needle machine, including mounting plate, adjustable pressing plate is arranged in the bottom of mounting plate, the wire slot for placing needle thread is evenly provided in the bottom of pressing plate, rotatable rotating plate is rotatable in the top of pressing plate, reset spring is arranged between rotating plate and pressing plate, one end of rotating plate is rotatably connected with gyro wheel, rotating plate rotates with the movement of needle thread, compared with prior art, the beneficial effects of the utility model, when driving rotating plate rotation with the movement of needle thread driven by the operation of multi-needle machine, needle thread can be continuously pressed when being pulled, ensure the stability of needle thread movement, and by the continuous pulling force received by needle thread, needle thread is always ensured to be straight, ensure the use of multi-needle machine, avoid the problem of winding caused by the bending of multiple needle threads, and multiple gyro wheels and single rotating plate limiting adjustment processing can be handled as a whole.

Description

Technical Field

[0001] This utility model relates to the field of multi-needle machine crimping technology, specifically a crimping mechanism for multi-needle machines. Background Technology

[0002] Multi-needle sewing machines are sewing machines with multiple sets of needles and are widely used in decorative sewing. Classified by the number of needles, multi-needle sewing machines include 3-needle, 4-needle, 6-needle, 9-needle, 12-needle, 16-needle, 21-needle, 24-needle, 25-needle, 33-needle, 38-needle, and 50-needle sewing machines. With auxiliary devices, multi-needle sewing machines can perform functions such as pleating, gathering, and elastic gathering. Multi-needle sewing machines involve multiple weave threads, and a pressing mechanism is needed during the thread feeding process to ensure the sewing effect.

[0003] In the application document for a yarn pressing mechanism with application number 202420852836.3, pressing a pressing block causes the pressing block to move a wedge block and a connecting rod. The connecting block then drives a drive column to press against the inner wall of the drive groove on the locking component. At the same time, the wedge block releases its restriction on the moving block. Under the pressure of the drive column on the drive groove, the locking component moves, thereby releasing the restriction on the lifting column. Through the above structure, the height of the lifting column can be easily adjusted, which to a certain extent facilitates the adjustment of the yarn tension.

[0004] Although the above-mentioned application meets the user's needs to a certain extent, there are still some defects in the use process. The specific problems are as follows: when the needle and thread move, the needle and thread are only subjected to downward pressure. When the needle and thread are subjected to continuous tension, the needle and thread are prone to bending, causing them to easily tangle with each other. In addition, the needle and thread are prone to insufficient tension, resulting in the needle and thread being soft when the sewing machine knits. Based on this, this utility model designs a thread pressing mechanism for a multi-needle machine to solve the above problems. Utility Model Content

[0005] This invention provides a crimping mechanism for multi-needle machines, which can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a thread pressing mechanism for a multi-needle machine, comprising a mounting plate, an adjustable pressing plate at the bottom of the mounting plate, thread feeding grooves evenly distributed at the bottom of the pressing plate for placing needles and threads, a rotatable rotating plate at the top of the pressing plate, a return spring between the rotating plate and the pressing plate, a roller rotatably connected to one end of the rotating plate, and the rotating plate rotating as the needles and threads move.

[0007] Preferably, an adjusting screw is threadedly connected to one end of the mounting plate, a pressing plate is rotatably connected to the bottom of the adjusting screw, and a limit post is fixedly installed on the top of one end of the pressing plate.

[0008] Preferably, the mounting plate has a limiting groove at the position corresponding to the limiting post, and the limiting post is slidably connected inside the limiting groove.

[0009] Preferably, both ends of the wire feeding groove are fitted with spring telescopic columns by screws, and one end of the spring telescopic column is fitted with a pressing plate by screws.

[0010] Preferably, a fixing screw is fixedly installed on the top of the pressing plate, a rotating plate is slidably connected to the outside of the fixing screw, the rotating plate is rotatably connected to the top of the pressing plate, an adjusting nut is threadedly connected to the outside of the fixing screw, a limit block is rotatably connected to the bottom of the adjusting nut, and a reset spring is uniformly fixedly installed on the top of the pressing plate.

[0011] Preferably, the limiting block is located at the top of the rotating plate, and a T-ring is rotatably embedded inside the top of the limiting block, with the T-ring fixedly installed at the bottom of the adjusting nut.

[0012] Preferably, the reset spring is located outside the fixed screw, and the reset spring is also located between the bottom of the rotating plate and the top of the pressing plate, with the top of the reset spring fixedly connected to the rotating plate.

[0013] Preferably, the rotating plate has a corresponding groove at the position of the fixing screw.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model has a scientific and reasonable structure and is safe and convenient to use. When the needle and thread move with the operation of the multi-needle machine, the rotating plate is driven to rotate, so that the needle and thread can be continuously pressed when pulled, ensuring the stability of the needle and thread movement. Moreover, by subjecting the needle and thread to continuous pulling force, the needle and thread are always kept straight, ensuring the use of the multi-needle machine and avoiding the problem of multiple needles and threads bending and getting tangled. Furthermore, the overall adjustment of multiple rollers and the individual adjustment of the rotating plate can be made to accommodate the pressing of needles and threads of different thicknesses, expanding the applicability of the pressing device. When the multi-needle machine is not in use, the reset spring resets the rotating plate and rollers, pressing the needle and thread to ensure the fixation of the needle and thread when the sewing machine is not in use. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the extrusion plate installation structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the roller mounting structure of this utility model;

[0020] The following are the labels in the diagram: 1. Mounting plate; 2. Adjustment assembly; 201. Adjusting screw; 202. Pressing plate; 203. Limiting post; 204. Wire feeding groove; 3. Automatic stretching assembly; 301. Fixing screw; 302. Rotating plate; 303. Adjusting nut; 304. Limiting block; 305. Return spring; 306. Roller; 4. Spring telescopic post; 5. Extrusion plate. Detailed Implementation

[0021] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0022] Example: Figure 1-3 As shown, the present invention provides a technical solution: a thread pressing mechanism for a multi-needle machine, including a mounting plate 1, an adjustment component 2 installed at the bottom of the mounting plate 1, and the adjustment component 2 including an adjustment screw 201, a pressing plate 202, a limiting post 203 and a thread feeding groove 204;

[0023] An adjusting screw 201 is threadedly connected to one end of the mounting plate 1. A pressing plate 202 is rotatably connected to the bottom of the adjusting screw 201. A limit post 203 is fixedly installed on the top of one end of the pressing plate 202. Multiple wire feeding grooves 204 are evenly opened on the bottom surface of the pressing plate 202.

[0024] The mounting plate 1 has a limiting groove at the position of the limiting post 203. The limiting post 203 is slidably connected inside the limiting groove to ensure the stability of the movement of the pressing plate 202 and to avoid the problem of rotation when the pressing plate 202 moves.

[0025] Both ends of the thread feeding groove 204 are fitted with spring telescopic columns 4 by screws. One end of the spring telescopic column 4 is fitted with a pressing plate 5 by screws, which facilitates the pressing of the needle thread and ensures the stability of the needle thread when it moves.

[0026] The top of the pressing plate 202 is equipped with an automatic tensioning assembly 3, which includes a fixing screw 301, a rotating plate 302, an adjusting nut 303, a limit block 304, a return spring 305, and a roller 306.

[0027] A fixing screw 301 is fixedly installed on the top of the pressing plate 202. A rotating plate 302 is slidably connected to the outside of the fixing screw 301. The rotating plate 302 is rotatably connected to the top of the pressing plate 202. An adjusting nut 303 is threadedly connected to the outside of the fixing screw 301. A limit block 304 is rotatably connected to the bottom of the adjusting nut 303. A reset spring 305 is evenly fixedly installed on the top of the pressing plate 202. A roller 306 is rotatably connected to one end of the rotating plate 302.

[0028] The limiting block 304 is located at the top of the rotating plate 302. A T-ring is rotatably embedded inside the top of the limiting block 304. The T-ring is fixedly installed at the bottom of the adjusting nut 303, which facilitates the limiting treatment of the end of the rotating plate 302 and facilitates the rotation of the adjusting nut 303 to drive the limiting block 304 to move.

[0029] The reset spring 305 is located outside the fixing screw 301. The reset spring 305 is also located between the bottom of the rotating plate 302 and the top of the pressing plate 202. The top of the reset spring 305 is fixedly connected to the rotating plate 302, which facilitates the reset of the rotating plate 302.

[0030] The rotating plate 302 has a corresponding groove at the position of the fixed screw 301 to facilitate the rotation of the rotating plate 302 and avoid the problem of jamming when the rotating plate 302 rotates.

[0031] After the operator installs the mounting plate 1 in the appropriate position on the multi-needle sewing machine, they can adjust the height of the pressing plate 202 by rotating the adjusting screw 201. This adjustment, via the threaded connection between the screw 201 and the mounting plate 1, allows for height adjustment. Once the pressing plate 202 is adjusted to the appropriate height, the operator passes the needle thread through the thread feed groove 204 and the bottom of the roller 306. As the sewing machine moves the needle thread, it is pulled, causing the roller 306 to rotate and the rotating plate 302 to rotate. This ensures that the needle thread is continuously pressed while being pulled, guaranteeing stable needle thread movement. Furthermore, by adjusting the... The needle and thread are subjected to continuous tension, ensuring that they remain straight and preventing tangling caused by bending of multiple needles and threads, thus guaranteeing the use of the multi-needle machine. Furthermore, by rotating the adjusting nut 303, the operator moves the limiting block 304 to limit the top position of the rotating plate 302, facilitating the pressing of needles and threads of different thicknesses and expanding the applicability of the pressing device. When the multi-needle machine is not in use, the return spring 305 resets, causing the rotating plate 302 and roller 306 to return to their original positions, pressing the needle and thread to ensure their fixation when the machine is not in use.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A crimping mechanism for a multi-needle machine, comprising a mounting plate (1), characterized in that: The mounting plate (1) is provided with an adjustable pressing plate (202) at the bottom. The pressing plate (202) is provided with a thread-feeding groove (204) for placing needles and threads at the bottom. The pressing plate (202) is rotated with a rotating plate (302) at the top. A return spring (305) is provided between the rotating plate (302) and the pressing plate (202). A roller (306) is rotatably connected to one end of the rotating plate (302). The rotating plate (302) rotates as the needles and threads move.

2. The crimping mechanism for a multi-needle machine according to claim 1, characterized in that, The mounting plate (1) has an adjusting screw (201) connected to one end by a thread. The bottom of the adjusting screw (201) is rotatably connected to a pressing plate (202). A limit post (203) is fixedly installed on the top of one end of the pressing plate (202).

3. The crimping mechanism for a multi-needle machine according to claim 2, characterized in that, The mounting plate (1) has a limiting groove at the position of the limiting post (203), and the limiting post (203) is slidably connected inside the limiting groove.

4. The crimping mechanism for a multi-needle machine according to claim 2, characterized in that, Both ends of the wire feeding groove (204) are fitted with spring telescopic columns (4) by screws, and one end of the spring telescopic column (4) is fitted with a pressing plate (5) by screws.

5. The crimping mechanism for a multi-needle machine according to claim 1, characterized in that, A fixing screw (301) is fixedly installed on the top of the pressing plate (202). A rotating plate (302) is slidably connected to the outside of the fixing screw (301). The rotating plate (302) is rotatably connected to the top of the pressing plate (202). An adjusting nut (303) is threadedly connected to the outside of the fixing screw (301). A limit block (304) is rotatably connected to the bottom of the adjusting nut (303). A reset spring (305) is uniformly fixedly installed on the top of the pressing plate (202).

6. The crimping mechanism for a multi-needle machine according to claim 5, characterized in that, The limiting block (304) is located at the top of the rotating plate (302), and a T-ring is rotatably embedded inside the top of the limiting block (304). The T-ring is fixedly installed at the bottom of the adjusting nut (303).

7. The crimping mechanism for a multi-needle machine according to claim 5, characterized in that, The reset spring (305) is located outside the fixed screw (301), and the reset spring (305) is also located between the bottom of the rotating plate (302) and the top of the pressing plate (202). The top of the reset spring (305) is fixedly connected to the rotating plate (302).

8. The crimping mechanism for a multi-needle machine according to claim 5, characterized in that, The rotating plate (302) has a corresponding groove at the position of the fixing screw (301).

Images